GB2591414A - Multi vessel method and system for placing an object on a seabed - Google Patents

Multi vessel method and system for placing an object on a seabed Download PDF

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Publication number
GB2591414A
GB2591414A GB2105553.8A GB202105553A GB2591414A GB 2591414 A GB2591414 A GB 2591414A GB 202105553 A GB202105553 A GB 202105553A GB 2591414 A GB2591414 A GB 2591414A
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GB
United Kingdom
Prior art keywords
buoyancy
vessels
seabed
sea
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB2105553.8A
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GB202105553D0 (en
GB2591414B (en
Inventor
Fulton Thomas
Amann Santana Bruno
Cribbs Allison
Kent Longridge Jonathan
Miller Regan
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Intermoor As
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Intermoor As
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Publication of GB202105553D0 publication Critical patent/GB202105553D0/en
Publication of GB2591414A publication Critical patent/GB2591414A/en
Application granted granted Critical
Publication of GB2591414B publication Critical patent/GB2591414B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/04—Cable-laying vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
    • B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
    • B63G8/14—Control of attitude or depth
    • B63G8/24—Automatic depth adjustment; Safety equipment for increasing buoyancy, e.g. detachable ballast, floating bodies
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/0122—Collecting oil or the like from a submerged leakage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2205/00—Tethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2207/00—Buoyancy or ballast means
    • B63B2207/02—Variable ballast or buoyancy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/32—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using cableways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/36—Arrangement of ship-based loading or unloading equipment for floating cargo

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Earth Drilling (AREA)
  • Revetment (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

Described herein is a method for placing an object (200) on a seabed (31), the method comprising the steps of: - connecting the object (200) to at least two vessels (110, 120) by use of a work wire (131, 132); - attaching one or more buoyancy devices (136) to the work wire (131, 132), to achieve a distributed buoyancy of the work wire (131, 132) that forms a double curvature which disassociates at least some vessel (110, 120) movement from the object (200), to allow for controlled movement of the object (200); and - co-operating the vessels (110, 120) to move the object (200) into a position in a sea (3) distant from the vessels (110, 120), to lower the object (200) to the seabed (31) and to place the object (200) on the seabed (31). There is also described a system (1) for transporting an object (200) to a position in a sea (3) where the water comprises gas bubbles (23) significantly lowering the load-carrying capacity of the water and for lowering the object to an area on a seabed (31) having a wellbore (2) from which the gas bubbles (23) enter the sea (3).

Claims (18)

C l a i m s
1. A method for placing an object (200) on a seabed (31), the method comprising the steps of: - connecting the object (200) to at least two vessels (110, 120) by use of a work wire (131 , 132); - attaching one or more buoyancy devices (136) to the work wire (131 , 132), to achieve a distributed buoyancy of the work wire (131 , 132) that forms a double curvature which disassociates at least some vessel (110, 120) movement from the object (200), to allow for controlled movement of the object (200); and - co-operating the vessels (110, 120) to move the object (200) into a position in a sea (3) distant from the vessels (110, 120), to lower the object (200) to the seabed (31) and to place the object (200) on the seabed (31).
2. The method according to claim 1 , wherein the method comprises the step of: - adjusting a length of the work wire (131 , 132) released from a vessel (110, 120) to adjust the position of the object (200) in the sea (3) and/or to lower the object to the seabed (31).
3. The method according to claim 1 or claim 2, wherein the object (200) is a capping stack (200) and wherein the method further comprises the step of: - containing an uncontrolled release of hydrocarbons from a wellbore (2) by con necting the capping stack (200) to the wellbore (2).
4. The method according to any one of the preceding claims, wherein the method comprises the step of: - connecting the object (200) to one or more other heave-compensation devices.
5. The method according to step 4, wherein at least one buoyancy device (136) is a buoyancy device (136) having adjustable buoyancy, wherein the method further comprises the step of: - adjusting the buoyancy of a buoyancy device (136) having adjustable buoyancy.
6. The method according to any one of the preceding claims, wherein the method comprises the step of: - shutting down a wellbore (2) to end an uncontrolled release of gas and/or oil from the well by placing the object (200) on the seabed (31) to cover the top of the well bore (200).
7. The method according to any one of the preceding claims, wherein the method comprises the step of: - connecting a relief wire (139) to the object (200) from at least one of the vessels (110, 120) to carry at least a portion of a gravitational load from the object (200).
8. The method according to step 7, wherein the relief wire (139) is used to carry a gravitational load from the object (200) while performing the step of: - deploying one or more buoyancy devices (136) from a vessel (110, 120).
9. The method according to any one of the preceding claims, wherein the method fur ther comprises the steps of: - deploying an ROV; and - using the ROV to monitor the position of the object (200) to improve accuracy of the step of co-operating the vessels (110, 120) to lower the object (200) to the seabed (31).
10. The method according to any one of the preceding claims, wherein the method fur ther comprises the step of: - using a transponder placed at or near the object (200) to monitor the position of the object (200) to improve accuracy of the step of co-operating the vessels (110, 120) to lower the object (200) to the seabed (31).
11. A system (1) for transporting an object (200) to a position in a sea (3) where the water comprises gas bubbles (23) significantly lowering the load-carrying capacity of the water and for lowering the object to an area on a seabed (31) having a well bore (2) from which the gas bubbles (23) enter the sea (3), the system comprising: - at least two vessels (110, 120); - a work wire (131 , 132) for connecting the object (200) to the vessels (110, 120); and - one or more buoyancy devices (136) attached to the work wire (131 , 132), wherein the object (200) is connected to the two vessels (110, 120) by use of the work wire (131 , 132), wherein the one or more buoyancy devices (136) are ar ranged for the work wire (131 , 132) to have a distributed buoyancy that forms a double curvature which dissociates at least some vessel (110, 120) movement from the object (200) for allowing for controlled movement of the object (200), and wherein the system (1) is arranged for holding and lowering the object (200) in a position in the sea (3) distant from the vessels (110, 120) and for placing the object (200) on the seabed (31).
12. The system (1) according to claim 11 , wherein the vessels (110, 120) comprises communication means for communicating between the vessels (110,120) to co operate in transporting the object (200) and/or in lowering the object (200) to the seabed (31).
13. The system (1) according to any one of claim 11 or 12, wherein the system (1) fur ther comprises a transponder located on or close to the object (200) and/or an ROV for providing data on the position of the object (200) in the sea (3).
14. The system (1) according to any one of claims 11-13, wherein the system (1) fur ther comprises at least one other heave-compensating device connected to the means for connection and/or to the object (200) for providing buoyancy.
15. The system (1) according to claim 14, wherein the system comprises a plurality of buoyancy devices (136) for providing buoyancy, wherein the buoyancy devices (136) are connected to the means for connection (235) and/or to the object (200) for providing buoyancy.
16. The system (1) according to any one of claims 14 or 15, where at least one buoy ancy device (136) has adjustable buoyancy.
17. The system (1) according to any one of claims 11-16, wherein the system (1) comprises a relief wire (139) for carrying at least a portion of a gravitational load from the object (200), wherein said relief wire (139) is connected to the object (200) and to at least one of the vessels (110, 120).
18. The system (1) according to any one of claims 11-17, wherein the system (1) miti gates heave, or motions in general, from the vessels (110, 120).
GB2105553.8A 2018-11-21 2019-11-21 Multi vessel method and system for placing an object on a seabed Active GB2591414B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20181487A NO346089B1 (en) 2018-11-21 2018-11-21 Multi vessel method and system for placing an object on a seabed
PCT/NO2019/050256 WO2020106162A1 (en) 2018-11-21 2019-11-21 Multi vessel method and system for placing an object on a seabed

Publications (3)

Publication Number Publication Date
GB202105553D0 GB202105553D0 (en) 2021-06-02
GB2591414A true GB2591414A (en) 2021-07-28
GB2591414B GB2591414B (en) 2023-03-08

Family

ID=69005791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2105553.8A Active GB2591414B (en) 2018-11-21 2019-11-21 Multi vessel method and system for placing an object on a seabed

Country Status (4)

Country Link
US (1) US11448029B2 (en)
GB (1) GB2591414B (en)
NO (1) NO346089B1 (en)
WO (1) WO2020106162A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260143A2 (en) * 1986-09-10 1988-03-16 LME Petroscope Limited Method and apparatus for installing marine silos
GB2205123A (en) * 1987-05-14 1988-11-30 Norwegian Contractors Method of installing a buoyant body on a seabed
WO2010144187A1 (en) * 2009-06-11 2010-12-16 Exxonmobil Upstream Research Company Subsea hydrocarbon recovery systems and methods
US20110274496A1 (en) * 2010-05-10 2011-11-10 Dvorak Steven G Undersea leak remediation device and method

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US4075862A (en) * 1976-09-15 1978-02-28 Fmc Corporation Method and apparatus for installing underwater flowlines
US4377354A (en) * 1979-06-14 1983-03-22 Conoco Inc. Flow line bundle and method of towing same
US4324505A (en) * 1979-09-07 1982-04-13 Hammett Dillard S Subsea blowout containment method and apparatus
NO172483C (en) * 1990-08-14 1993-07-28 Norwegian Contractors PROCEDURE AND DEVICE FOR MANAGED SUBMISSION AND LOCATION OF A LARGE HEAVY SUBMISSION ITEMS DOWN THE SEA
NO316168B1 (en) * 2002-03-06 2003-12-22 Aker Marine Contractors As Procedure for transporting and installing objects at sea
FR2852917B1 (en) * 2003-03-26 2005-06-24 Saipem Sa SEALED COMPARTMENT RECEPTACLE AND METHOD OF PLACING IT TO RECOVER POLLUTANT EFFLUENTS FROM A EPAVE
US20120275274A1 (en) * 2011-04-26 2012-11-01 Bp Corporation North America Inc. Acoustic transponder for monitoring subsea measurements from an offshore well
US8522881B2 (en) * 2011-05-19 2013-09-03 Composite Technology Development, Inc. Thermal hydrate preventer
WO2015164115A1 (en) * 2014-04-23 2015-10-29 Conocophillips Company Well capping assembly and method of capping underwater well
EP3186141B1 (en) * 2014-08-27 2020-04-29 Safe Marine Transfer, LLC A multi-vessel process to install and recover subsea equipment packages

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260143A2 (en) * 1986-09-10 1988-03-16 LME Petroscope Limited Method and apparatus for installing marine silos
GB2205123A (en) * 1987-05-14 1988-11-30 Norwegian Contractors Method of installing a buoyant body on a seabed
WO2010144187A1 (en) * 2009-06-11 2010-12-16 Exxonmobil Upstream Research Company Subsea hydrocarbon recovery systems and methods
US20110274496A1 (en) * 2010-05-10 2011-11-10 Dvorak Steven G Undersea leak remediation device and method

Also Published As

Publication number Publication date
GB202105553D0 (en) 2021-06-02
US11448029B2 (en) 2022-09-20
NO20181487A1 (en) 2020-05-22
WO2020106162A1 (en) 2020-05-28
NO346089B1 (en) 2022-02-07
US20210388689A1 (en) 2021-12-16
GB2591414B (en) 2023-03-08

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